Modular Retaining Walls Sutherland Shire

Retaining Walls for the Sutherland Shire Properties

The retaining walls we install around the Sutherland Shire has to deal with sandy soils over Hawkesbury sandstone with clay pockets inland and with a wide spread from post-war brick to substantial waterfront rebuilds. Those two things between them explain most of what we recommend and most of what we advise against.

Retaining Walls in the Sutherland Shire is as much about access and set-out as it is about materials. On sandstone ridges and gullies falling to the Georges and Hacking waterways, getting the sequence right is what keeps a job to program.

Half the skill in retaining walls around the Sutherland Shire is knowing what not to disturb. Established gardens, old services and salt-laden air off Bate Bay and Port Hacking that punishes untreated steel all sit in the way of the obvious approach.

Book a free on-site measure on 0492 879 796. You get an itemised written quote for your the Sutherland Shire property, not a figure over the phone.

Retaining Walls Styles Suited to the Sutherland Shire

Common Problems We Are Called To Fix

Owners in the Sutherland Shire tend to call us at the point where patching has stopped working. By then the underlying issue is usually water weeping through the face because there is no drainage behind it, and a repair only postpones it.

• A wall built without allowance for the driveway sitting above it
• Timber sleepers that have rotted at the base course
• A level change that was filled rather than retained
• A wall that has begun to lean or bulge in the middle

The Detail That Decides Service Life

There is no premium in over-specifying something that was never going to fail. We put the money where the Sutherland Shire conditions actually attack the job, which is generally at ground level and at the fixings.

Everything we install carries a manufacturer specification, and we install to it. Warranty claims fail on installation detail far more often than on product defect.

• A wall on reactive clay has to allow for the ground swelling behind it, not just the static soil load.
• Height thresholds and proximity to a boundary are the two things that most often trigger a council approval requirement.
• A surcharge, meaning any load near the top of the wall such as a driveway, pool or structure, changes the design completely.
• Stepping a large level change into two terraces is often cheaper and always safer than one tall wall.
• Concrete sleeper walls carry their load through the steel posts, so post embedment is the critical dimension.

From First Measure to Finished Job

We photograph the site before we start and again at completion. On a the Sutherland Shire job that record settles most questions about what was there and what changed.

Services are located before excavation, every time. Around the Sutherland Shire the older streets carry runs that are not where the plans say they are, and a strike is expensive for everyone.

• Engineered walls with certification
• Stepped and terraced designs
• Agricultural drainage behind every wall
• Timber sleeper walls
• Segmental block and modular systems
• Sandstone block and boulder walls

What the Ground Is Like in the Sutherland Shire

It is worth knowing about sandy ground that drains beautifully but offers little lateral resistance before you commit to a design. It does not rule anything out, but it changes the detail and it belongs in the quote rather than in a conversation on the day.

Nothing about the Sutherland Shire is standard once you get past the front gate. We measure the whole site rather than the section you called about, because bushfire-prone land along the Royal National Park interface has a habit of turning up mid-job otherwise.

The practical constraint on most the Sutherland Shire jobs is steep waterfront blocks reached only by stairs or a barrow run. We work the materials route out before quoting, because a barrow run instead of a truck changes the program substantially.